Home / 4,390.12-6,582.72-3,871.28

Finding the Fourth Proportional to 4,390.12, 6,582.72 and 3,871.28

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Solution

The fourth proportional to 4,390.12, 6,582.72 and 3,871.28 is: 5,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.12 : 6,582.72 = 3,871.28 : x
  2. Step 2: Convert to fraction form
    4,390.12/6,582.72 = 3,871.28/x
  3. Step 3: Cross multiply
    4,390.12x = 6,582.72 × 3,871.28
  4. Step 4: Simplify right side
    4,390.12x = 25,483,552.28
  5. Step 5: Solve for x
    x = 25,483,552.28/4,390.12
  6. Step 6: Final answer
    x = 5,804.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.